Purification of biochemically derived 1,3-propanediol
US7211699B2 · kind B2 · utility
0Cited by
6References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 12, 2005 |
| Grant date | May 1, 2007 |
| Priority date | — |
| Expiry date | Aug 16, 2025 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C29/90
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention discloses a hydrogenation process for removing impurities and controlling acid for use in downstream processing of biochemically-derived 1,3-propanediol. Preferably, the biochemically-derived 1,3-propanediol, before the contacting, has an initial color and, after the contracting, has a color that is lower than the initial color.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.